Jeep 2007 Liberty - Manual (Page 116)

Then, reach under the hood and slide the safety latch to
the right and lift the hood.
To prevent possible damage, do not slam the hood to
close it. Lower the hood until it is open approximately 12
inches (30 cm) and then push hood closed. This should
secure both latches. Never drive your vehicle unless the
hood is fully closed, with both latches engaged.
WARNING!
If the hood is not fully latched, it could fly up when
the vehicle is moving and block your forward vision.
Be sure all hood latches are latched fully before
driving.
Underhood Safety Latch
116 UNDERSTANDING THE FEATURES OF YOUR VEHICLE